EP3064755A1 - Culasse de cylindre - Google Patents

Culasse de cylindre Download PDF

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Publication number
EP3064755A1
EP3064755A1 EP16156827.4A EP16156827A EP3064755A1 EP 3064755 A1 EP3064755 A1 EP 3064755A1 EP 16156827 A EP16156827 A EP 16156827A EP 3064755 A1 EP3064755 A1 EP 3064755A1
Authority
EP
European Patent Office
Prior art keywords
cylinder head
valve
gas
cavity
spark plug
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16156827.4A
Other languages
German (de)
English (en)
Other versions
EP3064755B1 (fr
Inventor
Raphael Jacob
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Innio Jenbacher GmbH and Co OG
Original Assignee
GE Jenbacher GmbH and Co OHG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GE Jenbacher GmbH and Co OHG filed Critical GE Jenbacher GmbH and Co OHG
Publication of EP3064755A1 publication Critical patent/EP3064755A1/fr
Application granted granted Critical
Publication of EP3064755B1 publication Critical patent/EP3064755B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/242—Arrangement of spark plugs or injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B19/00—Engines characterised by precombustion chambers
    • F02B19/10—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
    • F02B19/1019—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber
    • F02B19/1023—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber pre-combustion chamber and cylinder being fed with fuel-air mixture(s)
    • F02B19/1028—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber pre-combustion chamber and cylinder being fed with fuel-air mixture(s) pre-combustion chamber and cylinder having both intake ports or valves, e.g. HONDS CVCC
    • F02B19/1033—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber pre-combustion chamber and cylinder being fed with fuel-air mixture(s) pre-combustion chamber and cylinder having both intake ports or valves, e.g. HONDS CVCC specially adapted valves, e.g. rotary valves, pre-combustion chamber being part of a valve
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C17/00—Fertilisers or seeders with centrifugal wheels
    • A01C17/006—Regulating or dosing devices
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
    • A01C7/10—Devices for adjusting the seed-box ; Regulation of machines for depositing quantities at intervals
    • A01C7/107—Calibration of the seed rate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B19/00—Engines characterised by precombustion chambers
    • F02B19/10—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
    • F02B19/1004—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder details of combustion chamber, e.g. mounting arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B19/00—Engines characterised by precombustion chambers
    • F02B19/10—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
    • F02B19/1019—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber
    • F02B19/108—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber with fuel injection at least into pre-combustion chamber, i.e. injector mounted directly in the pre-combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B19/00—Engines characterised by precombustion chambers
    • F02B19/12—Engines characterised by precombustion chambers with positive ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
    • F02M21/0242—Shut-off valves; Check valves; Safety valves; Pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0248—Injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0248—Injectors
    • F02M21/0257—Details of the valve closing elements, e.g. valve seats, stems or arrangement of flow passages
    • F02M21/026—Lift valves, i.e. stem operated valves
    • F02M21/0263—Inwardly opening single or multi nozzle valves, e.g. needle valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0248—Injectors
    • F02M21/0257—Details of the valve closing elements, e.g. valve seats, stems or arrangement of flow passages
    • F02M21/026—Lift valves, i.e. stem operated valves
    • F02M21/0269—Outwardly opening valves, e.g. poppet valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0248—Injectors
    • F02M21/0275—Injectors for in-cylinder direct injection, e.g. injector combined with spark plug
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0248—Injectors
    • F02M21/0281—Adapters, sockets or the like to mount injection valves onto engines; Fuel guiding passages between injectors and the air intake system or the combustion chamber
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C17/00—Fertilisers or seeders with centrifugal wheels
    • A01C17/001—Centrifugal throwing devices with a vertical axis
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

Definitions

  • the invention relates to a cylinder head having the features of the preamble of claim 1.
  • a generic cylinder head are known from the prior art. That's how it shows DE 10 2004 016 260 (CATERPILLAR MOTOREN GMBH) a gas engine with antechamber into which gas flows via a channel (3).
  • a gas engine with antechamber into which gas flows via a channel (3).
  • a purged prechamber (2) and a separate Gaszu 1500kanal (3) arranged to supply a combustion chamber (4) with gas for the ignition, wherein the usual ignition process via a spark plug (8).
  • a solenoid valve (5) is arranged in a receiving area (6) and the outlet opens directly into the combustion chamber (4).
  • the EP0480545 (YANMAR DIESEL ENGINE CO) shows a pre-chamber gas valve, which is supplied via a channel (18) with propellant gas.
  • the gas enters via opposing holes in a cavity (138), from which the gas in the pre-chamber passes when the valve is open.
  • a disadvantage of the arrangement shown there are the increased space requirement and the cost of component alignment (correct angular orientation to ensure the gas passage).
  • the JP H04171256 A shows a valve with valve body, valve spring, a valve needle and a lower gasbeaufschlagten space. Likewise, an upper space is present, in which the valve spring is arranged. The gas is supplied laterally to the valve. An approximately radially directed bore opens into a very narrow annular channel. From this lead radially arranged holes to the valve needle.
  • a pre-chamber gas valve which has a two-part valve body, a valve spring and a valve needle.
  • the lower valve chamber is acted upon by gas and in the upper valve chamber sits the valve spring. Again, the gas passes through radial holes in a narrow annular gap and further into the valve housing.
  • Object of the present invention is to provide a comparison with the prior art improved cylinder head.
  • a cylinder head has a cavity for receiving a prechamber gas valve, wherein a recess extending substantially or completely around the prechamber gas valve forms an annular channel with a wall of the cavity surrounding the prechamber gas valve, the annular channel being connected to at least one gas supply channel for supplying the prechamber gas valve with fuel gas, wherein the annular channel through at least one obliquely arranged gas channel is connected to a lower cavity of the pre-chamber gas valve.
  • the angle of the gas channel to the symmetry axis of the valve body is 20 ° to 70 °.
  • the flow-related course of the supplied fuel gas is optimized by the fact that no acute angle must be flowed through.
  • an edge of the annular channel is arranged obliquely (inclined to the valve body). This can for example be chosen so that the inclined flank of the annular channel is at a right angle to the axis of the gas channel. This can be a production-related ease when drilling the gas channel caused.
  • the angle of the gas channel to the symmetry axis of the valve body is 20 ° to 30 °.
  • the annular channel is connected by two to six gas channels with a lower cavity of the pre-chamber gas valve.
  • a spark plug sleeve is inserted into the cylinder head so that the wall of the cavity forming an annular channel with the prechamber gas valve is formed by the wall of the spark plug sleeve. This describes the case where the pre-chamber gas valve is not directly inserted into the cylinder head but is disposed in a plug shell.
  • the wall of the cavity forming an annular channel with the prechamber gas valve is formed by the wall of the cylinder head itself.
  • the pre-chamber gas valve is directly, so used without mediation via a spark plug sleeve in the cylinder head.
  • At least one gas channel is provided in the pre-chamber gas valve, which connects the annular channel with a lower cavity of the pre-chamber gas valve. It is therefore formed in the valve body of the pre-chamber gas valve at least one gas channel.
  • fuel gas is conducted from the annular channel in the direction of the valve seat of the prechamber gas valve through this gas channel.
  • the valve body of the pre-chamber gas valve thus takes over in the form of the gas channel, the line of the fuel gas from the annular channel to the place of removal at the valve seat. This construction has proven to be particularly advantageous.
  • the space has a largely pear-shaped, tapering towards the antechamber shape.
  • the inflow of gas from the pre-chamber gas valve can be favorably influenced in the pre-chamber or in the channel and yet the volume can be kept small.
  • the prechamber gas valve has at least one projection on its outer contour, the flank of which facing the annular channel also delimits the annular channel and on the other flank of which a sealing means bears against the bore for sealing the prechamber gas valve.
  • This component integration is achieved in a particularly advantageous manner.
  • the annular channel may have a radial depth corresponding to the height of the projection, deeper or less deep. Orienting yourself at the height of the projection, this allows a little disturbed geometry of the valve body.
  • a sealant for example, an O-ring in question, which seals the Vorschventil radially relative to the bore.
  • further projections may be provided which can accommodate further sealing means.
  • a spark plug is arranged in the cylinder head, wherein the spark plug and the pre-chamber gas valve in a common Cavity of the cylinder head are arranged.
  • the spark plug and the pre-chamber gas valve are arranged in mutually penetrating holes. In this way, the spark plug and the pre-chamber gas valve can be installed even more space-saving.
  • FIG. 1a shows a cylinder head 2 with a spark plug sleeve 4 inserted into the cylinder head 2.
  • a cavity 7 is formed in this embodiment by the spark plug sleeve 4.
  • Figures 1b and 1c show the spark plug sleeve 4 in two views.
  • Fig. 1a shows a longitudinal section through the cavity 7, which receives a spark plug 6 (not shown) and a Vorschgasventil 5.
  • the cavity 7 comprises a shaft, which is concentric about the axis of symmetry S1, of cylinder sections for accommodating a spark plug 6.
  • the cavity 7 further has a bore 10 with symmetry axis S2 for receiving a prechamber gas valve 5.
  • a channel 8 leads to the prechamber 3.
  • the prechamber 3 consists on the one hand of the actual cavity, so the cavity in which the ignition of mixture takes place.
  • the pre-chamber 3 is also a physical component.
  • the pre-chamber 3 is designed as a separate component of the spark plug sleeve 4 and is connected to the spark plug sleeve 4, for example, pressed.
  • spark plug 6 is introduced via the concentric to the axis of symmetry S1 shaft in the spark plug sleeve 4 so that it is flush with the prechamber 3 and their electrodes protrude into the prechamber 3.
  • the pre-chamber 3 is enriched by the pre-chamber gas valve 5 via the channel 8 with fuel gas. After ignition in the pre-chamber 3 ignited mixture occurs via the overflow holes 9 in the main combustion chamber (not shown).
  • Fig. 1b shows a plan view of the representation of Fig. 1 a.
  • the spark plug 6 is as based on the Fig. 1a not shown.
  • Recognize the pre-chamber gas valve 5 is an octagon, with which the pre-chamber gas valve 5 is screwed into the spark plug sleeve 4.
  • the center line of the largest hole with diameter D1 lies between the axes of symmetry S1 and S2.
  • the common shaft has advantages in the assembly of spark plug 6 and pre-chamber gas valve 5, but weakens spark plug sleeve 4, since only a small wall thickness remains.
  • Fig. 1c shows a perspective view of the spark plug sleeve 4 of this embodiment.
  • FIGS. 2a to 2c show various views of a spark plug sleeve 4 for insertion into a cylinder head 2 (not shown) according to another embodiment. Again, the cavity 7 is formed by the spark plug sleeve 4.
  • the cavity 7 has a cylindrical portion which circumscribes at its largest diameter both the bore for receiving the spark plug and the bore for receiving the prechamber gas valve 5, then in the present embodiment, the largest diameter of the cavity 7 no longer comprises the bore of the spark plug sleeve 4 entirety. Rather, the bore 10 of the prechamber gas valve 5 penetrates the spark plug bore 11 in its upper section with the largest diameter. This becomes particularly clear in the representations of Figure 2b and Figure 2c , In a plan view ( FIG. 2b ) thus overlap the bore 10 for receiving the Vorschventils 5 and the bore for receiving the spark plug. 6
  • FIGS. 3a to 3c show a further embodiment of a spark plug sleeve 4 for insertion into a cylinder head 2 (not shown).
  • the cavity 7 is formed by the spark plug sleeve 4.
  • the bore for receiving the pre-chamber gas valve 5 is not circumscribed by a largest diameter of the cavity 7.
  • the holes for receiving a spark plug 6 and for receiving the prechamber gas valve 5 penetrate here as well FIGS. 2a to 2c
  • the contour of the cavity 7 is designed here such that the cylindrical bores for receiving the spark plug 6 and the prechamber gas valve 5 merge into one another.
  • the sharp transitions of the embodiment are after FIGS. 2a to 2c here replaced by a smooth radius in the transition of the two holes.
  • Fig. 4a shows a section through a spark plug sleeve 4, wherein the section has been laid so that the gas supply to the pre-chamber gas valve 5 is clear.
  • the cut is in Fig. 4b outlined.
  • a gas supply channel 12 opens into an annular channel 13 which is formed between a wall 10 surrounding the prechamber gas valve 5 and the outer contour of the prechamber gas valve 5.
  • the hole forms 10 together with the pre-chamber gas valve 5 an annular channel 13, in which the gas supply channel 12 opens.
  • the wall 10 is again formed by the wall of the spark plug sleeve 4.
  • Fig. 4c shows a longitudinal section through the spark plug sleeve 4. The cut is from the Fig. 4d out. As in Fig. 4c can be seen, the cutting guide is chosen here so that the parallel to the axis of symmetry S1 extending part of the gas supply channel 12 can be seen.
  • Fig. 4e shows in a perspective, isometric view of the arrangement of Vorschgasventil 5 and its gas supply. Gas is supplied through the horizontal and vertical sections of the gas supply channel 12.
  • Fig. 5a shows a sectional view of a Vorhuntgasventiles 5.
  • the Vorhuntgasventil can be used in one of a cylinder head 2 (not shown here) or in one of a spark plug sleeve 4 (not shown here) cavity 7.
  • the cavity 7 is thus a recess which is formed either directly in a cylinder head 2 or in a spark plug sleeve 4 and which can accommodate a prechamber gas valve 5.
  • the annular channel 13 which is formed between the wall 10 of the cavity 7 and the outer contour of the pre-chamber gas valve 5.
  • the wall 10 may be formed either by the cylinder head 2 itself or by a spark plug sleeve 4 inserted into the cylinder head 2. This possibility has been described with reference to the exemplary embodiments according to FIGS Figures 1-4 explained.
  • the valve needle 14 is clamped by the spring 15 against its seat.
  • the cap 16 surrounds the spring 15 and is connected to the valve needle 14, for example via a beam welding.
  • the plug 17 closes and seals the pre-chamber gas valve 5 from the top.
  • the seal of the annular channel 13 with respect to the cavity 7 takes place radially over the O-rings 18. These are arranged in formed by the projections 19, annular receptacles.
  • the sealing concept of the prechamber gas valve 5 shown here thus provides that the sealing of the prechamber gas valve 5 takes place radially, ie, over the outer surface of the prechamber gas valve 5.
  • Fig. 5b shows a variant too FIG. 5a , in which the space 23 has a largely pear-shaped, tapering towards the prechamber 3 shape.
  • This embodiment is particularly advantageous in terms of flow.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Fuel-Injection Apparatus (AREA)
EP16156827.4A 2015-02-27 2016-02-23 Culasse de cylindre Active EP3064755B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA50161/2015A AT516618B1 (de) 2015-02-27 2015-02-27 Zylinderkopf

Publications (2)

Publication Number Publication Date
EP3064755A1 true EP3064755A1 (fr) 2016-09-07
EP3064755B1 EP3064755B1 (fr) 2018-12-19

Family

ID=55405260

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16156827.4A Active EP3064755B1 (fr) 2015-02-27 2016-02-23 Culasse de cylindre

Country Status (9)

Country Link
US (1) US10100714B2 (fr)
EP (1) EP3064755B1 (fr)
JP (1) JP6307102B2 (fr)
KR (1) KR101879488B1 (fr)
CN (1) CN106014670B (fr)
AT (1) AT516618B1 (fr)
AU (1) AU2016201130A1 (fr)
BR (1) BR102016003820A8 (fr)
CA (1) CA2921627C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020124117A1 (fr) 2018-12-21 2020-06-25 Innio Jenbacher Gmbh & Co Og Tête de cylindre pour un moteur a combustion interne
WO2020124102A1 (fr) 2018-12-21 2020-06-25 Innio Jenbacher Gmbh & Co Og Culasse pour un moteur à combustion interne

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK179281B1 (en) * 2016-12-13 2018-04-03 Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland Nozzle for fuel valve for injecting fuel into the cylinders of a large turbocharged two-stroke compression-ignited internal combustion engine
CN107658259B (zh) * 2017-10-27 2024-04-09 苏州精濑光电有限公司 一种柔性基板的吸附装置
GB2605988B (en) * 2021-04-20 2023-07-26 Caterpillar Energy Solutions Gmbh Conditioning of a pre-chamber gas flow for a combustion engine
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CN115234359A (zh) * 2022-06-27 2022-10-25 中国第一汽车股份有限公司 燃烧设备及具有其的汽油机

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EP0480545A2 (fr) 1988-12-29 1992-04-15 Yanmar Diesel Engine Co. Ltd. Moteur à gaz
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WO2020124102A1 (fr) 2018-12-21 2020-06-25 Innio Jenbacher Gmbh & Co Og Culasse pour un moteur à combustion interne
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CN106014670B (zh) 2019-05-31
CN106014670A (zh) 2016-10-12
KR20160105315A (ko) 2016-09-06
AT516618A4 (de) 2016-07-15
CA2921627A1 (fr) 2016-08-27
EP3064755B1 (fr) 2018-12-19
AU2016201130A1 (en) 2016-09-15
JP2016166608A (ja) 2016-09-15
US20160252006A1 (en) 2016-09-01
CA2921627C (fr) 2019-07-09
AT516618B1 (de) 2016-07-15
US10100714B2 (en) 2018-10-16
BR102016003820A2 (pt) 2016-10-11
JP6307102B2 (ja) 2018-04-04
KR101879488B1 (ko) 2018-07-17
BR102016003820A8 (pt) 2021-09-14

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